Control mechanism for motor-vehicles.



N. E. WAHLBERG.

CONTROL MECHANISM FOR MOTOR VEHICLES.

APPLICATION FILED MAR.3,1914.

Patented Feb. 2, 1915 2 SHEETS-SHEET 1.

l/VVE/VTOR W224; [3 51 7765 (567 WITNESSES:

I" ATTORNEYS N. E. WAHLBBRG.

CONTROL MECHANISM FOR MOTOR VEHICLES.

APPLICATION FILED MAR.3, 1914. 1,126,925. Patented Feb. 2, 1915.

2 SHEETS-SHEET 2.

rl hlll Ill-In- 4 .1. TE FATENT @FFTCE.

NILS ERIK'VJAHLBERG, 0F FONTEAC, MICHIGAN, ASSIGNOR TU OAKLAND MOTOR CAB CQMPANY, OF PONTKAG, MICHIGAN, A CQR-PORATION OF MIGHIGAN.

Specification of Letters Eatent.

PatentedF-elo. '2, 1915..

Application filed March 3, 1914. Serial No. 822,178.

To all whom it may concern I Be it known that T, NILS ERIK .WAHLBERG, a citizen of the United States of America, residing at Pontiac, in the county of Oakland and State of Michigan, have invented certain new and useful Improvements in Control Mechanism for Motor-Vehicles, of which the following is a specification, reference being bad therein to the accompanying drawings.

The invention relates to motor vehicle control mechanisms, and has for its object the obtaining of a simple and effective construction having advantageous features, as hereinafter set forth.

In the drawings: Figure l is a front elevation of the control; Fig. 2 is a side elevation thereof; Figs. 3 and 4 are views similar to Figs. 1 and 2 showing a modified c011- struction; and Fig. 5 is a diagrammatic cross section of a portion of Fig. l illustrating the operation.

My improved construction is more particularly designed for use in What is known as center control, in which the controlling lever is at the center instead of the side of the machine. The construction is, however, equally applicable to the side control type, but as illustrated the center control is shown.

In detail. A. is the control lever, which is preferably located at the end of the trans.

mission gearing (not shown).

B is aframe to which the lever A is attached, and which is preferably bolted to the end of the transmission gear housing, as indicated by dotted lines at C. This frame B preferably forms both the fulcrum for the lever and the guide therefor, or what is commonly known asthe H-plate. The latter portion is preferably at the top D, and from the opposite sides thereof are depending portions E, which at their lower ends are connected by a separate cross bar F. Ears G are also preferably bent from the side portions to form the means of attachment to the gear housing.

It is one of the objects of the invention to fulcrum the lever so as to permit of universal pivotal movement without the use of sliding parts requiring lubrication. This is accomplished by securing to the lever a cross pin H, which lies in rolling contact against the upper face of the bar F. Below said bar is a plate I which has rounded lugs J opposite the pin H and lying in rolling contact with the under face of the bar F. The plate I is sleeved upon the shank of the lever A, and is held in contact with the bar F by the tension of a spring K also sleeved upon the lever. The lever itself is flattened in a plane perpendicular to the axes of the pin H and lugs J and engages a slot of cor responding width in the bar F. Thus, when the lever is rocked, the surface of the pin ll will roll upon the upper surface of the bar 4 F, while the surface of lugs J which act as rolls will rollon the lower surface of said bar, while the spring K will yield to provide the necessary increased space between said rolling members, required by their movement in opposite directions.

To hold the lever in its normal position and to prevent accidental displacement, the slot in the bar F, through which it passes, is substantially of the same size as the cross section of the lever. The lever, however. in moving will assume an angular position, and to permit of this the portion which engages the slot is rounded at l1, being suitably curved to at all times prdvide clearance. The correct mathematical curve for this would be a. cycloid, but in practice a circular are drawn from a center intermediate the axes of the pin H and lugs J will.

serve the purpose.

In the manipulation of the lever, it is rocked laterally as well as longitudinally to transfer its engagement to the opposite sides of the H-plate. This rocking movement is also permitted by the construction just described, the effect being to tilt the pin H and lugs J, so that only the opposite members of the pair are in rolling contact. as shown in an exaggerated way in Fig. 5.

With the construction as described in use, the lever may be rocked either longitudinally or laterally, and in such movement rolls upon its fulcrum instead of sliding. This avoids the necessity of using a lubricant, which would be difficult to maintain in the exposed position of the lever. A further function performed is the placing of a slight tension on the lever, acting to return it to its neutral position. This is due to the compression of the spring K whenever the lever is rocked either longitudinally or laterally, and consequently the lever when in its neutral position or in the cross slot of the H- plate. will be yieldablv held in this position by said spring. Furthermore, when released in any mile? pfi'stmfi timm is a sfiight temiancy far it w remm 0 neutmh this is ineifisient m mme tha lav m withmit the assistams 0f fish: @pemmr.

In Fig. 3 22ml the 60mm? mmhanism just dwcribefi is mmbinad 2m 9mmg ency amine ievai' mnstyucflamwhich 60mm'ises :1 Item? L sec-1 2% m a nick shaft 1% The rack shaft is jmfimaiefi N wc'ured t0 the mass bay and the Eever is gamed gaifie plmi 1151""913 to (me side ofthe E-piate. This we gfiiifi plai e N is prefemmy notchefi at fl-fcr file engagement m? a leaking 10g P eanfimE-fiexi a. wash butmn Q m" a ms? releasing flew ice Hymn the handle 6% fl'kfi Emma.

The frame B is pmfemhiy so isca tefi as in surmnn the tmasmiw'mz shaft (n01; shew) of the wehmlia transmission Tu pmvide ckamme fm 11hr; flew-1* A is latemfiy efisei at A",

What I chi-m as my invention is:

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6. Tha mmbinafigm with a shite-(E mam-- m; 40% a lever passing therethmugh, am? Miami pmjeciians extending fmm mid 1mm upzm eppsasifie sfies 0f mi siotted mmbem- "yiaifiabiy pressa mwawd ezwh @ther m railing mama with the @mmsite Ewes @i said slatted mem'fian the portimz 0f saifl Emmi passing fizmxmgh the flat Ewing iminimnei ta fit the same 21? mm @i mz grfim afijushnent.

51 Tim mmbimtim a shtted mam hm" 0% a Fewer passing ihemthmugh, a mmflefl Eafiemi pmjeetima extending mm sai Fiwer mum (me side @i saii siafirfl mamber, a mamher sfiaewa upsm sail lawn? hamimg' a wrmspmding mmi pmjeetwm 11mm the @ppwitre side @i $3M siatheci member, anwi a spring mama sai have? far fow mid sfiwwsd member am munded per flan. flmemof mwarzi fim rmmfi pzafiecfizm m1 @ppmite side 0% $2M s mtei membezr m Emmi-251a bath @1? mix? pmfieetimns in. miing csmtact the @pparsim fewefi @f ,sfimiwfl member.

u a mmiwnisma fine wm'himwith Ewan, @f a Mamba" fiia pm'fimi s 211262 a 32m @afi i wer m1 .11 pmand fmm @2621 w 25% @pm saisi F m1 slotted member, corresponding rounded lugs In testimony whereof I aflix my signature sleievedfupoi siaid (liever ubpon th; opposite in presence of two witnesses.

si es 0 sai s otte mem er, an a spring sleeved upon the shank of said lever engag- NILS ERIK WAHLBERG' mg said sleeve member, for maintaining Witnesses:

said rounded lugs in rolling contact with the WM. J. BELKNAP,

opposite faces of said slotted member. JAMES P. BARRY.

Copies of this patent may he obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

